Given the deterrent effects of transnational repression and conflict transmission in the United States and Britain before 2011, what brought anti-regime Libyans, Syrians, and Yemenis together for the Arab Spring? Chapter 4 describes how the Arab Spring mobilized members of the anti-regime diaspora by upending the normative operation and effects of transnational repression and conflict transmission in the diaspora. The Arab Spring did so by reducing the costs of activism, making members willing to take risks, and creating new solidarities against common threats. The extent to which diaspora groups experienced these quotidian disruptions determined whether or not they converted preexisting organizations to the cause and maintained solidarity over time.

Chapter 3 demonstrates why Libyan, Syrian, and Yemeni mobilization was weak before the Arab Spring. The author shows how two transnational social forces--transnational repression and conflict transmission--depressed and deterred anti-regime mobilization by embedding diasporas in authoritarian systems of control and sociopolitical antagonisms through members' home-country ties.

Chapter 2 provides a brief historical background of Middle Eastern migration to the west and details how authoritarian-nationalist regimes in Libya, Syria, and Yemen pushed exiles and emigrants to the United States and Great Britain. By examining the state of diaspora mobilization from the 1960s to the eve of the Arab Spring in 2010, the author demonstrates anti-regime movements were small, atomized, and considered partisan by their conationals. Neither Libyan and Syrian exiles nor well-resourced white-collar professionals were able to forge public member-based associations or initiate large anti-regime protest events during this period. Yemeni movements, meanwhile, focused on supporting southern separation from the Yemeni state, rather than on the reform or liberalization of the Yemeni government.

Chapter 1 provides the theoretical justification for the book and proposes a new framework for explaining what scholar Albert Hirschman calls "voice" after "exit" against authoritarian regimes.

The Conclusion summarizes the book's contribution and details the implications of The Arab Spring Abroad for future studies of transnational activism, diaspora mobilization, and immigrant politics.

Chapter 6 demonstrates how the varied conversion of diaspora activists' resources—their home-country network ties, social capital, and fungible resources—mitigated their interventions in the Libyan, Syrian, and Yemeni revolutions from the United States and Great Britain.

Chapter 7 shows how diaspora activists’ interventions in the Libyan, Syrian, and Yemeni Arab Spring were shaped by the relative degree of geopolitical support for the cause from their host-country governments and influential third parties, including states bordering the home-country, international institutions, and the media.

Chapter 5 describes differences in activists’ collective interventions for rebellion and relief. Moss demonstrates how diaspora movements adopted a common transnational repretoire of (1) broadcasting their allies’ plight to the outside world, (2) representing the cause to the media and policymakers, (3) brokering between allies, (4) remitting tangible and intangible resources homeward, and (5) volunteering in person on the front lines and along border zones. However, not all diaspora movements played a congruent role in the uprisings. While Libyans in the United States and Britain played what the author calls a "full-spectrum" role in the revolution for its duration, Syrians and Yemenis did not. The chapters to follow explain how and why.

The Introduction presents an overview of why diaspora mobilization matters, why the existing literature has not satisfactorily explained its causes and dynamics, and previews the author's key arguments. This chapter justifies the book's comparative framework and details the data collection strategies used to investigate the Arab Spring abroad.